The Hubble Space Telescope has captured the best picture yet of a high-speed comet visiting our solar system from another ...

SALT LAKE CITY—Encouraged by the growing technical prowess of the U.S. commercial space industry, NASA is considering buying a small satellite servicing mission to reboost its Swift telescope in low ...

The space around Uranus just got a bit more crowded. On Tuesday, astronomers using the James Webb Space Telescope announced ...

Scientists think the new tiny moon hid for so long -- even eluding the Voyager 2 spacecraft during its flyby about 40 years ...